<div class="admin_main_lan_bg">
{#if $act=="list" || $act==""#}
<div class="admin_main_an_a"><a href="?act=list">广告列表</a></div>
{#else#}
<div class="admin_main_an_b"><a href="?act=list">广告列表</a></div>
{#/if#}
{#if $act=="ad_add_select" || $act=="ad_add"#}
<div class="admin_main_an_a"><a href="?act=ad_add_select">添加广告</a></div>
{#else#}
<div class="admin_main_an_b"><a href="?act=ad_add_select">添加广告</a></div>
{#/if#}
{#if $act=="ad_category" || $act=="ad_category_add"#}
<div class="admin_main_an_a"><a href="?act=ad_category">广告位管理</a></div>
{#else#}
<div class="admin_main_an_b"><a href="?act=ad_category">广告位管理</a></div>
{#/if#}
<div class="clear"></div>
</div>